magnesium deficiency diagnosis ( 1 week update )

Agonixx

Agonixx

Well-Known Member
Hey guys, of course I’m back. Love to be here but on better terms I wish was the case. It’s been about a week since my Epsom salt spray doesn’t seem to getting any different for the better, looks to be worse on the “first” plant ( will provide photos and info below ). Leaves are very odd (short and like stubby) on plant 1 not sure what that’s all about. Each plant had a slurry test done to determine PPM and PH.

Disclaimer - I’m a newb

Issue details

Correction attempt roughly 1 week ago - Epsom salt spray, 1 tbsp per gallon of water dissolved with 1 drop of dish soap and poured into a spray bottle.
Sprayed both tops and bottoms of all the leaves.
Issue noticed - roughly almost 1.5 weeks ago

Plant info

Plant life duration - roughly 5 weeks
Amount of plants - 2
Light - IONBOARD s24 (roughly 1.5 feet above canopy of plants) 24 hours of light
Pot size - 5 gallon
Strain - autoflower blue dream
Circulation - tent is opened once a day, ac infinity all in one carbon filter in-line fan hasn’t been used yet , clip on fan blowing air around the tent . Two other vents are open now.
Soil - coast of Maine stonington blend
Temp - 79/80
Humidity - 75ish

Nutrient info

Nutrients - 5 ml of dynagrow foliagepro per gallon of water, roughly half gallon per watering.
PH ( in a gallon of water ) - 3.9
500 scale ppm ( in a gallon of water ) - 515
700 scale ppm (roughly in a gallon of water ) - 712


Plant 1
D7ED3FE1-DEA2-4B98-9C17-19AF2197923E.jpeg
soil ph - 6.5
500 scale ppm - roughly…912
700 scale ppm - 1107

plant 2
7244B1EE-17CD-4101-8359-83AAD1F69898.jpeg
Soil ph - 6.7
500 scale ppm - roughly 1040
700 scale ppm - 1237

Overview photo
9DF1F3D3-8753-4429-9F45-CD7A9EB775AE.jpeg
4719C264-6159-4B48-8359-F3B5D712B3BB.jpeg
plant 1 is on the left and plant 2 is on the right

Any recommendations/corrections to my grow would be appreciated. Also any additional information needed, please feel free to ask I have been trying to get better at supplying information that is needed.


thank you all ❤
 
PadawanWarrior

PadawanWarrior

Well-Known Member
Looks like Mg and K deficiency. What's your water like? Those yellow edges and burnt tips is what makes me say K. And the light green between the veins looks like Mg. What did you mean by pH 3.9, and how are you checking soil pH?
 
Agonixx

Agonixx

Well-Known Member
PadawanWarrior said:
Looks like Mg and K deficiency. What's your water like? Those yellow edges and burnt tips is what makes me say K. And the light green between the veins looks like Mg. What did you mean by pH 3.9, and how are you checking soil pH?
Click to expand...
Soil slurry test
 
TaoRich

TaoRich

Well-Known Member
Anyone feel free to shoot me down if I'm wrong, but if your water doesn't have trace elements, then isn't a 'sea based' feed a good source to get those?

Maybe try a little fish hydrolysate or kelp.

Broad range of trace elements and micronutrients in those, and couldn't do any harm I reckon.
 
TaoRich

TaoRich

Well-Known Member
Agonixx said:
well my place I live in is like town water so it’s chlorinated prolly
Click to expand...
The ill effects of chlorination in the water have been overplayed.

It won't hurt your plant at all, and cannabis needs a little chlorine to be healthy.

The only downside is that the chlorine can (marginally) reduce your microbe population, but it's not that big a deal.

Let the tap water sit in an open container for 24 hours, and most of the chlorine will evaporate off.
 
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